/*
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements.  See the NOTICE file distributed with
 *   this work for additional information regarding copyright ownership.
 *   The ASF licenses this file to You under the Apache License, Version 2.0
 *   (the "License"); you may not use this file except in compliance with
 *   the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package util;

/**
 * Tests the correctness of string interning.
 *
 */
public class StringIntern {
    public static void main(String[] args) {
        String s = "abcde";
        String s0 = "abcde".intern();
        String s1 = ("abc" + "de").intern();
        String s2 = ("ab" + "cde").intern();

        if (s0 != s1 || s1 != s2) {
            System.out.println("FAIL: incorrect interning");
        } else if (s != s0) {
            System.out.println("FAIL: literal is not interned");
        } else {
            System.out.println("PASS");
        }
    }
}